1550nm Non-ablative Fractional Vs 1927nm Thulium Fractional Laser for the Treatment of Female Pattern Hair Loss
A Prospective, Randomized, Evaluator-blind, Clinical Trial Evaluating the 1550nm Non-ablative Fractional or 1927nm Thulium Fractional Laser for the Treatment of Female Pattern Hair Loss
1 other identifier
interventional
10
1 country
1
Brief Summary
To evaluate the efficacy of either a 1550nm non-ablative fractional laser or a 1927nm thulium fractional laser in the treatment of female pattern hair loss (FPHL).
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at below P25 for not_applicable
Started May 2025
Shorter than P25 for not_applicable
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
April 7, 2025
CompletedFirst Posted
Study publicly available on registry
April 13, 2025
CompletedStudy Start
First participant enrolled
May 1, 2025
CompletedPrimary Completion
Last participant's last visit for primary outcome
November 30, 2025
CompletedStudy Completion
Last participant's last visit for all outcomes
December 31, 2025
CompletedApril 16, 2025
April 1, 2025
7 months
April 7, 2025
April 11, 2025
Conditions
Outcome Measures
Primary Outcomes (3)
Change in hair count at a predefined 1cm x 1cm scalp location
Measured by the Canfield Hair Matrix System
Baseline and Day 180
Change in hair density (hairs/cm) at the same predefined scalp area
Measured by the Canfield Hair Matrix System
Baseline and Day 180
Change in terminal hair average diameter (in mm) at the predefined location
Measured by the Canfield Hair Matrix System
Baseline and Day 180
Secondary Outcomes (5)
Change in Sinclair Scale score
Baseline and Day 180
Change in perceived age based on blinded evaluator assessment of global scalp photographs
Baseline and Day 180
Subjective Assessment on Hair outcomes
Day 180
Physician Global Aesthetic Improvement Scale (PGAIS) via photos by blinded evaluator
Day 180
Comfort Level Visual Analog Scale
Baseline, Day 30, Day 60, Day 90
Study Arms (2)
GROUP A 1550nm non-ablative fractional laser
EXPERIMENTALGroup A: Study subjects will have a total of 4 treatments spaced 4 weeks apart. No additional topical treatments applied
GROUP B 1927 thulium fractional laser
ACTIVE COMPARATORGroup B: Study subjects will have a total of 4 treatments spaced 4 weeks apart. No additional topical treatments applied.
Interventions
Treatment with the 1550nm non-ablative fractional laser for female pattern hair loss to the frontal and crown of scalp.
Treatment with the 1927 thulium fractional laser for female pattern hair loss to the frontal and crown of scalp.
Eligibility Criteria
You may qualify if:
- Adult women aged 35-65 years
- Fitzpatrick skin types I-IV
- Presence of female pattern hair loss of the frontal or vertex of scalp (Sinclair (II-IV)
- Must be willing and can comply with all study protocols, including all treatment schedules, follow up visit, assessments, sign a photography release and ICF, and complete the entire course of the study
- Patients with gray hair roots must be willing to dye their gray hair within two weeks of the first appointment and the last 3-month follow-up visit to ensure consistency in evaluator assessments.
- No use of hair growth treatments or procedures within 6 months prior to enrollment (including hair supplements such as Nutrafol)
- Subjects in good general health based on investigator's judgment and medical history
- Negative urine pregnancy test result at the time of study entry
- Subjects will be of non-childbearing potential defined as:
- Having no uterus
- No menses for at least 12 months.
- Or;
- Subjects of childbearing potential must agree to use an effective method of birth control during the study. All systemic birth control measures must be in consistent use for at least 30 days prior to study enrollment participation. Acceptable forms of birth control below:
- Oral contraceptive pill, injection, implant, patch, vaginal ring, intrauterine device
- Intrauterine coil
- +5 more criteria
You may not qualify if:
- No surgery, pregnancy, breast feeding, change in or addition of hormonal contraception in the last 6 months
- No history of iron deficiency anemia, vitamin D deficiency, or thyroid disease (hypothyroidism or hyperthyroidism or currently on thyroid supplementation)
- Use of scalp light or with laser treatment within the last 6 months.
- Use of topical or systemic drugs affecting hair growth within 6 months prior to enrollment (such as oral spironolactone, finasteride, oral or topical minoxidil, and supplements marketed for hair growth such as Nutrafol)
- Supplementation of oral tumeric/curcumin
- History of hair transplant
- Systemic or scalp disease that may affect hair growth (Lupus, alopecia areata, folliculitis decalvans, psoriasis, scalp infection, seborrheic dermatitis, CCCA, telogen effluvium)
- Pregnancy or planned pregnancy during the study or currently breastfeeding.
- Any uncontrolled systemic disease
- History of autoimmune connective tissue disease or thyroid disease.
- Current use of immunosuppressive medication.
- Significant history or current evidence of a medical, psychological or other disorder that, in the investigator's opinion, would preclude enrollment into the study.
- Active dermatitis, metal or other active implants, active infection in the proposed treatment area.
- Subjects with scarring in the treatment areas (scalp) Subjects with a history of keloids will be excluded.
- History of bleeding disorder, concomitant use of anticoagulants, history of connective tissue disease, history of Bell's Palsy, epilepsy, smoking, pregnancy, and lactation.
- +2 more criteria
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
West Dermatology Research Center/Cosmetic Laser Dermatology
San Diego, California, 92121, United States
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Central Study Contacts
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- RANDOMIZED
- Masking
- SINGLE
- Who Masked
- INVESTIGATOR
- Masking Details
- Evaluator Blind
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
April 7, 2025
First Posted
April 13, 2025
Study Start
May 1, 2025
Primary Completion
November 30, 2025
Study Completion
December 31, 2025
Last Updated
April 16, 2025
Record last verified: 2025-04